#define NUMBERSTUDENTS	20
#define ARRAYSIZE	10
typedef struct{
	char name[20];
	char group[10];
	int age;
	int regnumber;
} students;

extern void add_student(students p_dai1[], int* n);
extern void del_student(students p_dai1[], int* n);
extern void list_student(students p_dai1[], int* n);

extern void print_array(int a[])
{
	int i;
       	for(i=0;i<ARRAYSIZE;i++){
	       printf("- %d -", a[i]);
	}
	printf("\n");
}

/* 
void binary_sort(void)
{
	printf("Random non ordenated array\n");
	print_array(a);
}
*/
